John d



(No Modl.)

J. D. BURKHART, O. H..WATERMAN 8v J. D. SMITH. PLOW.

No. 518,936. Patented May 1, 1894.

A TTOHNEYS.

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UNITED STATES P TENT OFFICE.

JOHN DLBURKHART, CHARLIE H. WATERMAN, AND JOHN D. SMITH, OF

DAYTON, WASHINGTON. 1

PLOW.

SPECIFICATION forming part of Letters Patent No. 518,936, dated May 1, 1894.

Application filed September 12, 1893. Serial No. 485,331. (No model-l To all whom it may concern.-

Be it known that we, JOHN D. BURKHART,

CHARLIE H. WATERMAN, and JOHN D. SMITH,

of Dayton, in the county of Columbia and State of Washington, have invented a new and useful Improvement in Plows, of which the following is a full, clear, and exact description.

Our invention relates to an improvement in plows, and especially to an improvement in what is known as combined hillside and sulky plows.

The object of the invention is to provide a double plow carrying a right-hand and a lefthand share, and to provide a means whereby either plow may be expeditiously and conveniently carried to and from an engagement with the ground, and whereby the forward axle of the plow may be adjusted independently of the adjustment of the plow shares, or simultaneously with the adjustment of the shares; and further to provide a plow which will be exceedingly simple and durable in construction as well as economic, and to so construct the plow that either beam and its attached share may be disconnected from the carriage, and further to construct the plow in such manner that both beams will be connected with the same carriage and in a manner also whereby one plow will ride upon a swiveled wheel on the land, out of engagement with the ground, independent of the other plow which will be in position for work.

Theinvention consists in thenovelconstruction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to behad to the accompanyingdrawings, forming a part of this specification, in which similar figures and letters of reference indicate corresponding parts in all the views. f

Figure 1 is a plan view of the improved plow. Fig. 2 is a side elevation thereof, the clevis support being in section; and Fig. 3 is a detail view illustrating the attachment of a rack to the axle from which the plow beam has been'removed.

In carrying out the invention two forward crank axles .10 and 11 are employed, said axles having loosely mounted upon their outer ends drive wheels 12. The inner ends or members of the axles are pivoted upon a plate 13, one axle being located at each side of the center, which plate in connection with a tongue 13*, may be said to constitute the carriage of the plow, and together with the axles and wheels 12 the body portion thereof. The plate 13, is the front transverse plate or bar of the plow, and is provided at its forward-edgewith an upturned flange and at its rear edge with a downwardly-projecting flange, as shown in Figs. 2 and 3, in order that the plate may be made as light as possible and yet be strong.

Bearings 14 of any approved construction are located upon the plate 13, as shown in Fig. 1, and in these hearings the axles 10 and 11 are journaled, one independent of the other; and at each end of the plate a sleeve 15, is preferably located, integral with the plate, each sleeve being provided with a set screw 16, in order that the axles may be held rigidly in any position in which they may be placed. The tongue 13 is located at the right-hand side of the plow and stands at an elevation above the carriage plate or bar 13,

being connected therewith at its right-hand the arms being made at the under side of the to consist of a straight body portion a and-an forward shank section a. At the rear end of the body or straight section a of each lift lever the upper end of a plow shank 20, is pivoted, the said shankbeing curved downward from the lever in the ordinary manner, and the plow shares 21, are secured to the lower ends of the shanks in any manner known to the trade. Below the pivotal point of each plow shank the lower endof a rack 22, is secured, and the racks extend upward and outward in a -:manner to project outside of the lift levers and some distance above said levers when the latter are 5 in their lower position. Each rack 22, is engaged by a thumb lever 23, carried one by each lift lever 19. Near the inner end of each axle a bar 24, is pivoted and therear end of each bar is connected with a shank 20, through the medium of a pivot pin 25 of the shank, which pin passes through the lift lever shank and bar 24. At the inner end of each axle and 11, an adjusting lever 26, is

rigidly secured, and by operating the lever tion. Each adjusting lever 26, is provided *With a thumb latch 27, and theselatchesare ilada ted for engagementwith racks 28, the.

l "racks being secured :to the pivoted bars #24:,

- connected with thelplows, the shanks and lift levers 19. l Each lever l9,lis connected With its pivotal bar.24,-through the medium of a brac'e fltlyas shownbestin Fig. 1, so that the bars '24-and the plow shanks 20 and the le- 25 vers=23,'1may-be raised or lowered simulta- 3o sha'nksare simply continuations of the beams 1 24. Thus it lwill be observed that a complete --plow,= includingshare, beam and adjusting -devices," is located at each side of :the seat of the carriage, and are practically parallel with 5 one another,=oneof the plows being a righthand 'and the other a lett hand plow. mAn arm 60, is projected from each plow' shank 20;:rearwardly and outwardly tl1erefrom, and each arm terminates at its rear end: in. a

o socket 3l, and in each socket a memberofv a crank axle isjournaled, the crank axles be- 1 ing respectively designated as 32 and 33, and the=said axles 32 and 33 are the rear axles l ofi the plow and 1 are so curved that the wheels 34:, whichare mounted upon the axles,may

follow directly behind the center portion of each plow. It will beobserved that' these wheels are-practicallyswiveled, since their -axles are free to turn in their bearings, and

a the iwheels will follow the movement'of the axles. i Therear =or swivel'ed wheels 34, are Wmuch smaller than the forward wheels. A ear '35, is located parallel with and some dis- ==tance from the front of the carriage beam or.

bai' l3;being connected with the latter; and

vnupon the bar 35 which may be termed a clevis supporuthe clevis 36, has sliding movementaand the clevis is connected by a link 37 with a lever 38, which lever is fulcrumed 6c upoh the brace bar 29 0t the'right-hand plow,

and -is provided with a thumb latch 88, l 'adapted to" engage with a rack 39, securedto -the righ t=handi1plowl beam and right .hand lifit lever. r By this means the 1 clevis may be shifted to accommodate theteam,and three. horses lIldYbGlllOllldBd in the team if de-,

the axle will be turned in adesired direcsired, the tongue 13 insuring the plow turning with the team.

In Fig. 2 the right-hand plow beam and plow are illustrated as raised, the right-hand lift lever having been elevated, and the plow is supported by its rear swiveled wheel 34 traveling on the land, and in lifting the righthand lever 19 on the right-hand axle, it being connected with the lift lever through the medium of the adjusting lever 26 and rack 28, the said right-hand axle will be turned in a manner to level the frame therefore, the righthand swiveled and the forward supporting wheels will travel upon the land,while thelefthand corresponding wheels will travel in the furrow. When the end of the furrowisreached the left-hand 1lfil lBVG1liS raised .to the same height as the right-hahd: 1 lever, which' action .will throw the left-hand'plow out oflthe' ground :the lefit-handaxle adj ustinglleven'andtothat end anauxiliaryrack 40, may-bezsecured to thecarriage plate 13, as shown in Figz. 3.

1 The. plow is exceedingly:simpleglidurable and economic. in. its; constructions andiiscapable of. use either as a sulky or as a-hillside plow, and at the same time thel plow is a double cue, each of its shares: beinignindependently manipulated.

1 Having thus described our: invention, we claim as i new: and desire to securleiby lietters Patent- 1LIl1 a plow, the combination; with a carriage having v independent: l and adjustable crank axles connected therewith, of :jointed plow beams having pivotal connection with the carriage,a11d llift leversiand locking devices connected with the-plow beams. and with the carriage, being fulcrumedl upon .the latter, as and for the purpose. specified.

2.: In a. plow, the combinatiomwith a carriage,andcrankaxlesconnectedwith=thesame, the said axles being adj ustable upon the carriage andindependent onel oh the others of a .plow beam constructed inupivoted. sections fulcrumed 'upon each. axle, ll'ift levers: :provided with locking devices likewise fulcru med upon theaxles-and connected-with? theiplow beams, and adjusting levers connected with the axlesand adapted-forioperationsin conjunction with or independent rofl the: lift levers, asiandfor the purpose set forth.

9 3; In a :plow, the combination; with a carriage, and crank axles adj ustably mounted upon the carriage and adaptedito carry supporting wheels, of plow beams constructed in pivotally connected sectionspsaidplow beams IIO being removably mounted upon the carriage, one at each side of its center, a lift lever connected with each plow beam and provided with looking devices, adjusting levers connected with the axles and likewise with the plow beams, and swiveled wheels adapted to follow in the track of the plows, saidwheels being connected with the plow beams, substantially as and for the purpose set forth.

4. In a plow, the combination, with a carriage, crank axles journaled upon the carriage and adapted to carry supporting wheels, and adjusting levers connected with the axles, of a plow beam constructed in pivotally connected sections, pivotallyconnected with the 

